ZIP Code 91743: Guasti, CA
County: San Bernardino County
Coordinates: 34.06500, -117.58640
ZIP Type: Standard
Time Zone: Pacific Time (PT)
Get a reliable snapshot of the Guasti, CA postal area 91743. This page summarizes county, coordinates, and local facts to help with services and location research.
| Primary City | Guasti |
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| ZIP Code | 91743 |
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| County | San Bernardino County |
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| State | CA |
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| Latitude / Longitude | 34.06500, -117.58640 |
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| ZIP Type | Standard |
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| Time Zone | Pacific Time (PT) |
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| Data Updated | 2026-01-08 |
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Maps & Useful Links
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These links show the approximate center point for ZIP 91743 (not an exact boundary).
Geographic & Administrative Context
Coordinates for 91743 are listed as 34.06500 / -117.58640, useful for GPS and service checks in and around Guasti, CA.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 91743 for mail delivery and general location reference in
San Bernardino County,
CA.
Some addresses near Guasti may share this ZIP due to delivery routing and local service areas.
Related ZIP Codes (Nearby)
Explore other postal codes near Guasti within CA.
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Frequently Asked Questions
What is the primary city for ZIP code 91743?
The primary city for this ZIP code is Guasti, located in CA.
In which county is 91743 located?
ZIP code 91743 is situated within San Bernardino County, CA.
What are the coordinates for 91743?
The approximate center point is 34.06500 (Latitude) and -117.58640 (Longitude).
Is ZIP code 91743 active?
This page lists ZIP 91743 as Listed based on the latest refresh date shown above.
Does ZIP 91743 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
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Methodology & Data Notes
How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.
Page updated: 2026-01-08